<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../react18/react.development.js"></script>
  <script src="../react18/react-dom.development.js"></script>
  <script src="../react18/babel.min.js"></script>
</head>
<style>
  .outer {
    width: 300px;
    height: 300px;
    background-color: aqua;
  }
</style>
<body>
  <div id="app"> </div>
  <script type="text/babel">
    /* 
      知识点:
        jsx的插值语法中不能放对象和函数,如果要放一个数据的集合可以使用数组
    
    */
    //假设请求回来我们要学习的课程数据
    /* const course = ["html","css","js","react","node"];
    const course = [<li>html</li>,<li>css</li>,<li>js</li>,<li>node</li>,<li>react</li>];

    const vDOM = (
      <ul>
        {
          course.map((item,index)=>{
            return <li>{item}</li>
          })
        } 
      </ul>
    ) */

    /* //假设请求回来的数据
    const arr = ["html","css","js","node.js","react","vue"]
    const arr2 = [<li>html</li>,<li>css</li>,<li>js</li>,<li>node</li>,<li>react</li>]

    const vDOM = (
      <div clsaaName = "outer">
        <ul>
          {
            arr.map((item,index) =>{
              return <li>{item}</li>
            })
          }
        </ul>
      </div>
    )

    
    //创建容器并渲染虚拟DOM
    // ReactDOM.createRoot(document.getElementById('app')).render(vDOM)
    ReactDOM.createRoot(document.getElementById('app')).render(vDOM) */



      //假设请求回来的数据
      const arr = ["老六","老6","老six","老溜"]

      const vDom = (
        <div>
          <ul>
            {arr.map((item,index)=>{
              return <li>{item}</li>
            })}
          </ul>
        </div>
      )

      ReactDOM.createRoot(document.getElementById('app')).render(vDom)



  </script>
</body>

</html>